Nice. Drones have contributed to reducing theft on cargo trains in Poland by ~60%. http://t.co/51wAzEb3vu http://pic.twitter.com/gNGo3Csf64
— Subrahmanyam KVJ (@SuB8u) September 4, 2015
from Twitter https://twitter.com/SuB8u
September 03, 2015 at 09:58PM
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